This is due in 10 minutes please help me
Given:
The rate of interest on three accounts are 7%, 8%, 9%.
She has twice as much money invested at 8% as she does in 7%.
She has three times as much at 9% as she has at 7%.
Total interest for the year is $150.
To find:
Amount invested on each rate.
Solution:
Suppose x be the amount invested at 7%. Then,
The amount invested at 8% = 2x
The amount invested at 9% = 3x
Total interest for the year is $150.
[tex]x\times \dfrac{7}{100}+2x\times \dfrac{8}{100}+3x\times \dfrac{9}{100}=150[/tex]
Multiplying both sides by 100, we get
[tex]7x+16x+27x=15000[/tex]
[tex]50x=15000[/tex]
Dividing both sides by 50, we get
[tex]x=\dfrac{15000}{50}[/tex]
[tex]x=300[/tex]
So, the amount invested at 7% is [tex]300[/tex].
The amount invested at 8% is
[tex]2(300)=600[/tex]
The amount invested at 9% is
[tex]3(300)=900[/tex]
Hence, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.
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Answer:
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Step-by-step explanation:
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You put $500 in a savings account. The account earns $20 simple interest in 6 months. What is the annual interest rate? Write your answer as a percent
Answer:
8%
Step-by-step explanation:
For simple interest, we use the equation I = PRT, where I is the interest earned, P is the principal/amount invested, R is the rate as a decimal, not percentage, and T is the time in years.
For this problem, we have to use 0.5 for T, because 6 months is 1/2 a year.
20 = (500)(r)(0.5)
20 = 250r
r = 0.08 = 8%
How do you which equation symbol to use?
Answer:
This question needs to be written better
Step-by-step explanation:
Each math symbol has words that direct u to know how/when to use them
For example:
Find the sum of 70 and 83
+- (Addition)-(Words used to say addition: Add, Sum , Plus, Increase, Total)
83+70=153
Find the difference between 83 and 70
_-(Subtraction),(Words used to say subtraction: Minus, Less, Difference, Decrease, Take Away, Deduct)
83-70=13
How many times can 2 go into 12?
÷-(Divide/Division)-(Words that are used to say Divide/Division: Quotient, Goes Into, etc.)
12÷2=6
Find the product of 6 and 7
×-(Multiplication/Multiply)-(Words that are used to say Multiplication/Multiply: Product, By, Times, Lots Of)
6×7=7
Hope this helps!
Hoodmemes~
DOES ANYBODY KNOW THIS?
Answer:
4/9 = 2/ x = 4.5
Step-by-step explanation:
Hope this would help.
Answer: The answer is 2/4.5
Step-by-step explanation: I found this because 4 is half of two so i just found half of nine and got my answer.
Hope this helps.
5x + 2y = 15
y = -3x + 4
Answer:
5x+2y=15
y=-3x+4
Substituting the value of y in the first equation..
5x+2(-3x+4)=15
5x-6x+8=15
x = -7
So, y = -3(-7)+4
y = 25
Pls help, thank you :)
Answer:
(3)
Step-by-step explanation:
Can someone tell me what x and y would be
Step-by-step explanation:
20°+120°+I°=180°
I=40°
using sine rule,
I/sin I=x/sinX
12/sin40=x/sin20
x=12sin20/sin40
x=6.4
using similarly and enlargement,
we have, cw/cp=y/120
8/12=y/120
y=80°
Solve |x–1| = 6x + 12
Answer:
[tex]x = - \frac{11}{7} [/tex]
Step-by-step explanation:
1) Break down the problem into these 2 equations.
[tex]x - 1 = 6x + 12[/tex]
[tex] - (x - 1) = 6x + 12[/tex]
2) Solve the first equation. x - 1 = 6x + 12
[tex]x = - \frac{13}{5} [/tex]
3) Solve the second equation: -( x - 1 ) = 6x + 12.
[tex]x = - \frac{11}{7} [/tex]
4) Collect all solution.
[tex]x = - \frac{13}{5}. - \frac{11}{7} [/tex]
5) Check solution.
When x=-\frac{13}{5}x=−513, the original equation |x-1|=6x+12∣x−1∣=6x+12 does not hold true.
When x=-\frac{13}{5}x=−513, the original equation |x-1|=6x+12∣x−1∣=6x+12 does not hold true.We will drop x=-\frac{13}{5}x=−513 from the solution set.
6) Simplify.
[tex]x = - \frac{11}{7} [/tex]
Therefor, the answer is x = - 11/7.
A number is divided by 3 and decreased by 5 is 6. What is the number???
Answer:
Given : x/3-5=6
answer = 23
Step-by-step explanation:
x-5=6*3
x-5=18
x=18+5
x=23
Answer:
33
Step-by-step explanation:
let the number be n , then the number divided by 3 is [tex]\frac{n}{3}[/tex] and decreased by 5
[tex]\frac{n}{3}[/tex] - 5 = 6 ( add 5 to both sides )
[tex]\frac{n}{3}[/tex] = 11 ( multiply both sides by 3 )
n = 33
The number is 33
Veronique's Unique Boutique reported the following information for 2021:
Net Cash Provided by Operating Activities
Net Increase in Cash
Net Income
Cash Sales
Capital Expenditures
Dividends Paid
$45,000
95,000
40,000
65,000
15,000
12,000
What is Veronique's free cash flow for 2021?
A
$13,000
B
$18,000
$68,000
$33,000
Answer:
5,0967,358
Step-by-step explanation:
write in set notation; The et of all real numbers greater than 8 but less than 65
Answer:
{x I 8 < x < 65}
Step-by-step explanation:
{x I 8 < x < 65}
Use the distributive property to simplify the expressions.
-3(4 - 3p)
-3(7 - 6u)
-6(-1 + 2c)
6(-n + 7)
9(5 + 3c)
Step-by-step explanation:
Do the steps that I did on Problem A for each!!!!
A:-3(4-3p)
a=-3, b=4, c=3p
Apply the distributive law:
[tex]-3*4-(-3)*3p[/tex]
Add minus - plus rules:
[tex]-3*4+3*3p[/tex]
Simplify:
=[tex]-12+9p[/tex]
B:-3(7-6u)
a=-3, b=7, c=6u
=-3*7+3*6u
Simplify;
=[tex]-21+18u[/tex]
C:-6(-1+2c)
a=-6, b=-1, c=2c
=-6(-1)+(-6)*2c
=6*1-6*2c
Simplify:
=[tex]6-12c[/tex]
D:6(-n+7)
a=6,b=-n,c=7
=6(-n)+6*7
=-6n+6*7
Simplify:
=--6n+42
E;9(5+3c)
a=9,b=5,c=3c
=9*5+9*3c
Simplify:
=45+27c
Would this be correct ladies and gents
Answer:
You can use the useful mnemonic: SOH CAH TOA to determine what function to use. Since we have information about the hypotenuse (H) and opposite (O), we should use sine (S) for "SOH".
So yes, sine would be correct.
Hope this helps!
HELP ME PLZ I NEED THE FORMULA AND AN EXPLANATION TO THE ANSWERRR
Answer:
[tex]r1 + r2 = r3[/tex]
Step-by-step explanation:
ℎ ℎ ℎ ℎ ℎ
Answer:
This is your answer ☺️. If I'm right so,
Please mark me as brainliest. thanks!!!
Can you name the theorem of the triangle?
A. AAS
B. SAS
C. ASA
D. SSS
12 less than a number , x
A 12 - x
B x - 12
Let that particular no. be x
then,
ATQ,
x -12
Which of the expressions below is true?
a. (3y)2 =3y2 b. 2ab5 = 2(ab)
5
c. (4b)3 = 64b3
d. 2(x)3 = 8x
S=2(3.14)zx+4(3.14)z^2
Answer:
what do you want to solve for?
Step-by-step explanation:
I need help ASAP will mark you the brainliest
Answer:
C
Step-by-step explanation:
longer leg/shorter leg = longer leg/shorter leg
10/5 = 5/2.5
10
Sara was thinking of a number. Sara adds 19 to it, then doubles it and gets an answer of 39.2. What was the original number?
Answer:
0.6
Step-by-step explanation:
2(x+19)=39.2
x+19=19.6
x=0.6
A member of the cafeteria staff asks every fifth student leaving the cafeteria to rank 5 vegetables from most favorite to least favorite. She finds that corn is one of the favorite vegetables. (choose if its biased or unbiased and if the conclusion is valid or not)
Answer:
gbn
Step-by-step explanation:
Answer:
unbaised and vaild
Step-by-step explanation:
help plz i’ll give extra points
elevation in feet = 8.56(140) + 674
elevation in feet = 1872.4
Round to the nearest whole number: 1872
Answer: 1872
Many questions in research can be expressed as two competing statements about the population parameter. These two statements are called the null and the alternative hypotheses. Usually, the researcher hopes the sample evidence will be in favor of the alternative hypothesis, the new theory. It is important to be able to state the theories that are being put to a test. For the scenario below, write out the hypotheses to be put to the test and define the parameter of interest in context of the problem.
Suppose that 70% of all faculty members at large public universities in the US use iClickers in their classrooms. We would like to assess if the proportion of faculty members at UM who use iClickers in the classroom is less than the stated rate.
Answer:
Following are the solution to the given question:
Step-by-step explanation:
Please find the complete question in the attached file.
[tex]H_0: p = 0.70\\\\H_a: p < 0.70[/tex]
The parameter p calculates the portion of faculty members utilizing the iClikers throughout the classrooms.
(copy and paste for picture)
If x = 6 units, y = 3 units, and h = 5 units, find the area of the rhombus shown above using decomposition.
A. 45 square units
B. 15 square units
C. 11 square units
D. 30 square units
Answer:
B
Step-by-step explanation:
30
Step-by-step explanation:
did it
Please help I’m on a test
“Given the triangle below, what is the longest side length?”
~11.31
Pythagorean Theorem because it is a right triangle.
ILL GIVE U BRAINLIST!! PLEASE HELP :(
Answer:
5 faces, 8 edges, 5 vertices
In science class, the girl to boy ratio is 3 to 7.
If there are 50 students total in the class, how many are boys? help meee out
Answer:
35 are boys and other are girl
Answer: 35 boys
Step-by-step explanation:
So we know the ratio of girls to boys for every 10 student is 3 girls to 7 boys from there we can multiply each number by 5 to give us a total of 50 students which would be 15 girls to 35 boys.
Melinda said she ate 2/8 of a pizza. What does the 8 in the fraction represent?
Answer:
It represent the slices of how much pizza were there (the total).
Also known for a denominator
Which of the following is the product of (3x − 5) and (3x + 5)?
Answer:
[tex] {9x}^{2} - 30x + 25[/tex]
[tex]\huge\underline\bold\blue{ƛƝƧƜЄƦ}[/tex]
(3x + 5)(3x - 5)
By using identity
(a + b)(a - b) = a² - b²
3x² - 5²
9x² - 25